Index: tcp_input.c
===================================================================
RCS file: /usr/repo/src/sys/netinet/tcp_input.c,v
retrieving revision 1.367
diff -u -p -r1.367 tcp_input.c
--- tcp_input.c	30 Jul 2007 11:06:41 -0000	1.367
+++ tcp_input.c	30 Aug 2007 17:45:33 -0000
@@ -448,6 +448,8 @@ findpcb:
 						m->m_pkthdr.rcvif);
 	}
 
+	if (inp != NULL)
+		INP_LOCK(inp);
 #ifdef IPSEC
 #ifdef INET6
 	if (isipv6 && inp != NULL && ipsec6_in_reject(m, inp)) {
@@ -487,7 +489,6 @@ findpcb:
 		rstreason = BANDLIM_RST_CLOSEDPORT;
 		goto dropwithreset;
 	}
-	INP_LOCK(inp);
 
 	/*
 	 * Check the minimum TTL for socket.